PE 4 - Venn Diagram | LR - Venn Diagram
Answer the next 2 questions based on the information given below.
Abdul, Mala and Chetan went bird watching. Each of them saw one bird that none of the others did. Each pair saw one bird that the third did not. And one bird was seen by all three. Of the birds Abdul saw, two were yellow. Of the birds Mala saw, three were yellow. Of the birds Chetan saw, four were yellow.
How many yellow birds were seen in all?
Solution
Discuss
ReportHow many non-yellow birds were seen in all?
Answer the next 5 questions based on the information given below.
300 students of a school went for picnic. Each student brought certain amount of money with himself/herself. The amount they bring with them is an integral multiple of 20, 30 or 50.
A: Students whose amount is a multiple of 20.
B: Students whose amount is a multiple of 30.
C: Students whose amount is a multiple of 50.
- number of students who belong to only A is twice the number of students who belong to B and C.
- The number of students who belong to A, B and C is 8.
- The number of students who belong to B is same as the number of students who belong to C.
- The number of students who belong to A and B is 8 more than the number of students who belong to A and C.
- The number of students who belong to only A and C is 8 more than the number of students who belong to only A and 16 less than the number of students who belong to only B.
How many students are in A but not B?
If no student brought more than Rs. 500 while 4 students brought Rs. 450, how many students brought Rs. 150?
No student brought an amount between 170 and 260 and the highest amount that anyone brought is Rs. 300. What is the average amount with students who belong to C? [Round off your answer to the nearest integer.]
What is the minimum number of students who brought more than Rs. 100?
If nobody brought an amount between Rs. 160 and 260 or more than Rs. 300 and the number of students who brought Rs. 50 was twice the number of students who brought 60, what is the average amount of the students who belong to more than one of A, B or C?
[Round off your answer to neared integer.]